An original approach of monolithic integration of InP based heterostructures on silicon is proposed based on the peculiar properties of the heterointerface between InP and crystalline Gd(2)O(3). When grown on a crystalline Gd(2)O(3)/Si(111) buffer, InP takes its bulk lattice parameter as soon as the growth begins, and the lattice mismatch (7.9%) is fully accommodated by the formation of a misfit dislocation network at the InP/Gd(2)O(3) heterointerface. This plastic compliant effect allows the monolithic growth of good quality InAsP/InP heterostructures on Si, as attested by room-temperature photoluminescence experiments. (c) 2007 American Institute of Physics.
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